Bonding in wood fibre-cement composites

1984 ◽  
Vol 19 (10) ◽  
pp. 3355-3359 ◽  
Author(s):  
R. S. P. Coutts ◽  
P. Kightly
Keyword(s):  
Wood Fibre ◽  
Cement Composites ◽  
Fibre Cement

Wood fibre - cement composites by extrusion

2000 ◽  
Vol 27 (3) ◽  
pp. 543-552 ◽  
Author(s):  
Yixin Shao ◽  
Shylesh Moras ◽  
Nilgun Ulkem ◽  
George Kubes
Keyword(s):  
Cement Composite ◽  
Temperature Cycling ◽  
Wood Fibre ◽  
Flexural Behavior ◽  
Cement Composites ◽  
Building Product ◽  
Toughness Index ◽  
Composites Materials ◽  
Fibre Cement ◽  
Hardwood Pulp

Wood fibres derived from both hardwood and softwood, being relatively inexpensive and in ample supply, have gained increasing popularity in the fibre-cement building product industry. Presently, the manufacture of most wood fibre - cement composites employs the Hatschek process. The purpose of this paper is to examine the feasibility of using extrusion technology for the production. Wood fibre - cement sheets, composed of both hardwood and softwood fibres of different fibre contents, were fabricated using an auger-type extruder. The flexural behavior, moisture content, water absorption, and density of all batches were evaluated. To investigate the weathering durability of the extruded composites, materials were also subjected to a temperature-cycling test and a natural exposure weathering test. With a relative ease of manufacture and a much cleaner production, extrusion was found to be a suitable means for making cement composite thin sheets with up to 8% fibres by weight. The extruded composites exhibited a performance comparable to or even better than that of the Hatschek products. Hardwood fibres, which are cheaper and more available than the softwood fibres, were found to be more suitable for extrusion production in terms of the extrudability, finished surface, and long-term mechanical properties.Key words: wood fibre - cement composites, hardwood pulp, softwood pulp, extrusion, strength, toughness index, temperature cycling, natural weathering.

scholarly journals CEMENT COMPOSITES REINFORCED WITH TEOS-TREATED WOOD FIBRES

2021 ◽  
Vol 55 (1-2) ◽  
pp. 141-147
Author(s):  
ALESSANDRA BUSS TESSARO ◽  
RAFAEL DE AVILA DELUCIS ◽  
SANDRO CAMPOS AMICO ◽  
DARCI ALBERTO GATTO ◽  
MARGARETE REGINA FREITAS GONÇALVES
Keyword(s):  
Mechanical Properties ◽  
Treated Wood ◽  
Cement Composite ◽  
Tetraethyl Orthosilicate ◽  
Wood Fibre ◽  
Cement Composites ◽  
Hygroscopic Properties ◽  
Wood Fibres ◽  
Fibre Cement ◽  
Fibre Cement Composite

In this study, wood fibres were extracted from eucalyptus and pine woods, treated by immersion in tetraethyl orthosilicate (TEOS) and incorporated into a cementitious matrix at three weight contents (2 wt%, 5 wt% and 10 wt%). The fibres were characterized using chemical and morphological analyses and the cement-based composites were evaluated using chemical, hygroscopic, mechanical and morphological tests. The morphological and spectroscopic results satisfactorily justified the physical-mechanical properties. The wood fibre-cement composites reached similar water uptake and apparent porosity to those of the neat mortar, but exhibited higher mechanical properties. Furthermore, all treated fibres yielded composites with improved mechanical and hygroscopic properties compared to those with pristine fibres. Overall, the best performance (based on hygroscopic and mechanical results) was obtained for the wood fibre-cement composite with 2 wt% pine fibres.

Air-cured, wood pulp, fibre cement composites

1985 ◽  
Vol 4 (1) ◽  
pp. 117-119 ◽  
Author(s):  
R. S. P. Coutts ◽  
P. G. Warden
Keyword(s):  
Wood Pulp ◽  
Cement Composites ◽  
Pulp Fibre ◽  
Fibre Cement ◽  
Wood Pulp Fibre

Fibre Reinforced Concrete with Recycled Concrete and Insulation Material STERED

2014 ◽  
Vol 1054 ◽  
pp. 262-266 ◽  
Author(s):  
Karel Šeps ◽  
Jan Vodička
Keyword(s):  
Reinforced Concrete ◽  
High Resistance ◽  
Recycled Concrete ◽  
The Other ◽  
Cement Composites ◽  
Insulation Material ◽  
Fibre Reinforced Concrete ◽  
Concrete Element ◽  
Recycled Materials ◽  
Fibre Cement

Introductory tests with insulation material STERED are mentioned in the paper. The material STERED arises from recycling of textiles from out-of-order cars. First tests showed that the material is suitable for concrete products. STERED can be used in two variants. The first one is utilisation of STERED as insulation boards in sandwich concrete element with high resistance to loading, above all blasts and fire-arms. The other variant is utilisation of crunched STERED in fibre-cement composites, possibly in a combination with other recycled materials.

Coupling agents in wood fibre-reinforced cement composites

Composites ◽  
1979 ◽  
Vol 10 (4) ◽  
pp. 228-232 ◽  
Author(s):  
R.S.P. Coutts ◽  
M.D. Campbell
Keyword(s):  
Wood Fibre ◽  
Coupling Agents ◽  
Cement Composites ◽  
Reinforced Cement
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